Sudoku Junior uses pictures to walk children through the puzzles. There is an option to play the traditional numbers version, but my girl went straight for the pictures. And there are plenty of images to choose from.
The pictures are organised into different themes, including country, festivals and animals. Since we are in the middle of the heat of summer, my daughter opted for the Halloween pictures for her first game.
The app starts with a tutorial, which walks both child and supervising parent through the game.
The tutorial is very thorough, and we skipped the last few steps because my daughter was keen to get started. There is an option to skip the tutorial.
We started on the easy level with four squares, which is for four- to 10-year-olds (she is working her way up to the moderate level).